Petee ludwig klein



' UNITED STATES ATENT -OFFICE,,

PETER LUDWVIG KLEIN, OF DUSSELDORF, PRUSSIA, GERMANY.

METHOD OF PREPARING WOOL FOR SPINNING.

SQECTFECATION forming part of Letters Patent; No. 357,486, datedFebruary 8, 1887.

Application filed January 30, 1886. Serial No. 190,367. (No specimens.)Patented in France December 8, 1884, No. 163,461; in

Bc'gium November 30, 1885. No. 70,800, and in England June 18, 1886,No.1,584.

T aZZ whom, it may concern.-

Be it known that I, PETER Lnnwrc KLEIN, of Dusseldorf, in the Kingdom ofPrussia and ,Empire of Germany, have invented a new and ation-called thepreparation-is that of thinning out and parallelizing this sliver andpreparing it for the spinning-machine by forming it into roving yarn,which is then passed onto the third operation of spinning on thespinning-machine.

My invention relates to the second operation, called the preparation,being thetreat ment of the combed wool coming from the combing-machineuntil it is formed into roving yarn ready for the spinning-machine; andit consists in substituting carding-engines for a certain number of thedrawing-frames now used in this operation of preparation,whereby notonlya great saving in the machinery necessary for this operation iseffected, but also its cost materially reduced.

As 110w practiced, the operation of preparation is as follows: Thecombed wool coming from the combing-machine is passed through a numberof drawingframes varying from seven to thirteen, according to thematerial used, the two last of these frames being called the finisherand the fine finisher, respectively The combed wool coming from thecombing-machine is passed through agilibox and formed .into slivers,which are then passed to the first drawing-frame, on which three or fourslivers are united and thinned out into a single one. Of these latter,three or four are again united on the second drawing-frame and thinnedout into a single one, and in this way the single slivers coming fromeach drawing-frame areunited by fours, threes,

and gradually by twos, and thinned out on the next following one, untilthey reach the fin isher and fine finisher, on both of which only twoslivers are united and drawn out into one, the fine finisher deliveringthe roving yarn ready for the spinning-machine. The entire operation isa very tedious and expensive one, each frame having to be attended by atleast one person, and it requires considerable time to pass a givenquantity of material through all of these frames.

By my improved method the operation "of preparation is greatlysimplified, the time required for the same greatly reduced--to aboutone-half-and its expense lessened in about the sameproportion.

For all the drawing-frames mentioned above as being now used-with theexception of the finisher and fine finisher, which I retain--I substitute two carding-engines, the first of which I call thepreparing-card, while I term the second the thinning-card, \Vhile, inthe method as now used, the material coming from the combing-machine hasto be formed into a sliver by the latter or by a gill-box, in order tobe passed through the drawing-frames, I bring the combed wool either inshape of loose flakes or of slivers or pieces of slivers onto 1 which iswound upon bobbins and then passed to the finisher, is exactly equal tothat which in the old method passed through the entire train ofgill-boxes and drawing-frames previous to reaching the finisher.

In the old method the bobbins prepared on one gill-box or drawing-framehave to be ar- 9 ranged on the next frame, and the latter stoppedmeanwhile, as also when one bobbin, having run off, has to be replacedby a fresh one, which causes a great loss of time. In my improved methodany given quantity of combed Iuu wool can be run through the two cardswhich I employ, in a continuous operation, delivering the bobbins to thefinisher in about onehalf the time required therefor in the old method,while also only one hand is required for attending the twocarding-engines, thereby saving greatly in actual wages.

There is no novelty in the construction of either the preparing or thethinning card,both being carding-engines of well-known construction 5butnever heretofore have carding-engines been employed in thepreparation of combed wool for use in fine spinning, whereby roving yarnfor the spinning-frame is produced from d combed wool coming from thecombing-machine. I do not therefore claim any novelty in theconstruction of the cardingeugines which I employ in the operation ofpreparation; but neither do I confine myself to the number of them, as Imay, according to the material, find one oi'them sufficient for mypurpose; or I may employ more than two, a saving of time and actualexpense resulting in any case; but

What I claim as new, and desire to secure by Letters Patent, 1's

1. The improved method, substantially as herein described, for thepreparation of wool, which'consists in carding and combing it, againsubjecting the wool thus carded and combed to the action of acarding-engine, and then drawing it, as and for the purpose set forth.

2. The method, substantially as herein described, for the preparation ofwool, which consists in first carding it, then combing it, then againsubjecting it to the action of carding-engines, and then subjecting itto the action of the finishing and fine-finishing drawiug'fraines, asset forth.

PETER LU DVVIG KLEIN.

\Vitnesses:

ALEXR. A. O. KLAUCKE, P. H. MULLER.

